20461017 has 4 divisors (see below), whose sum is σ = 27281360. Its totient is φ = 13640676.

The previous prime is 20461003. The next prime is 20461019. The reversal of 20461017 is 71016402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 20461017 - 2⁸ = 20460761 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20460984 and 20461002.

It is not an unprimeable number, because it can be changed into a prime (20461019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3410167 + ... + 3410172.

It is an arithmetic number, because the mean of its divisors is an integer number (6820340).

Almost surely, 2^20461017 is an apocalyptic number.

It is an amenable number.

20461017 is a deficient number, since it is larger than the sum of its proper divisors (6820343).

20461017 is an equidigital number, since it uses as much as digits as its factorization.

20461017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6820342.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 20461017 is about 4523.3855683547. The cubic root of 20461017 is about 273.5115928542.

Adding to 20461017 its reverse (71016402), we get a palindrome (91477419).

The spelling of 20461017 in words is "twenty million, four hundred sixty-one thousand, seventeen".